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Low Resistance Flexible Current Collector for Lithium Secondary Battery
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- Authors
- Jin Ho Yun, Gi-Beom Han, Yong Min Lee, Young-Gi Lee, Kwang Man Kim, Jung-Ki Park, Kuk Young Cho
- Issue Date
- 2011-08
- Citation
- Electrochemical and Solid-State Letters, v.14, no.8, pp.A116-A119
- ISSN
- 1099-0062
- Publisher
- Electrochemical Society (ECS)
- Language
- English
- Type
- Journal Article
- Abstract
- Flexible current collectors are fabricated through the placement of a thin copper layer onto various polymeric films such as poly (ethylene naphthalate) (PEN), poly(ethylene terephthalate) (PET), polyimide (PI), and poly(ether sulfone) (PES) by radio-frequency magnetron sputtering. Flexible current collectors with different Cu-sputtered thicknesses were examined as a current collector for lithium secondary batteries. As the thickness of the copper layer increased, the surface resistance of the flexible current collector decreased to the level of 1 ?? /Sq, which could make the unit cell based on the flexible current collector obtain comparable capacity as a copper metal foil current collector. © 2011 The Electrochemical Society. [DOI: 10.1149/1.3596721] All rights reserved.
- KSP Keywords
- Copper metal, Lithium secondary battery, Low resistance, Metal foil, Poly(ether sulfone)(PES), Polyethylene terephthalate, Polymeric films, Radio-frequency magnetron sputtering, Thin copper layer, Unit cell, ether sulfone(Poly)